Ments



(No Model.)

J. POSTER. THRASHING MACHINE.

No. 293.570. Patent ed Feb. 12

I I, INVENTORV QMM%TTO;IJEYS WITNESSES c n 1 n w m I w u M a w m p S n a P UNITED STATES PATENT OFFICE.

MARION JACKSON FOSTER, OF ASHLEY, ILL., ASSIGNOR, BY MESNE ASSIGN- MENTS, OF ONE-HALF TO WM. H. CARTER AND MARTHA J. CARTER, BOTH OF SAME PLACE, AND WILLIAM T. MOORE, OF RICHVIEW, ILL.

THRASHlNG-MACHINE.

, SPECIFICATION forming part of Letters Patent No. 293,570, dated February 12, 1884.

' Application filed June 4, 1883 (No model.)

T all whom it may concern-I.- Be it known that I, MARION J. FOSTER, a citizen of the United States, residing at Ashley, in the county of Washington and State of Illinois, have invented certain new and useful Improx ements in Thrashing-Machines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to makeand use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked ,thereon,-'which form a part of this specification.

Figure 1 of the drawings is a transverse sectional view of my device, with the same attached to a part of aframe. Fig. 2 is a front view of the same, and Fig. 3 is a plan view of the concave applied to a part of the frame. This invention has relation to thrashing-machines; and it consists in the construction and novel arrangement of devices, as will be hereinafter fully described, and particularly pointed out in the appended claim.

Referring by letter to the acccompanying drawings, a designates the frame of the machine, the incasement being removed to give a view of the operative mechanism.

1) designates the cylinder, which is largest at the middle and tapers toward both ends.

0 designates the concave, which is deepest at its middle, to conform to the shape of the cylinderj), and is designed to prevent choking or clogging where the grain being thrashed 5 is wet or damp. This spreading-board is preferably made in three sections, (1,6, and f, resting in curved grooved end bearings, g, pivoted to the inner faces of the top rails, h, of the frame, and connected at their outer ends to a curved cross-arm, t, which is connected to a lever, 7c, pivoted in a recess, is, in a cross-bar, Z,

, and connected by a spiralspring, l, to a pivoted pawl, 2*, extending rearwardly from the cross-bar Z beneath said lever k. Beneath the sectional grain-board a sheet-metal bottom, m, is provided, as shown, which connects loosely with the concave. The front section, d, of the spreading-board is concave, as shown, and is separated fromthe middle section, e, which is also concave, by projections e on the front edge of the same. The rear section, f, is straight, and is slotted transversely from nearly end to end, and, being straight, leaves a space, f, between it and the middle section, so'that the grain may fall through spaces onto the sheet-metal back and be guided to the grain-board, where the conveyer will carry it to the riddles in rear, while an endless strawcarrier belt (not shown) will carry the straw over fingers to a straw-stacker at the rear of the machine. These parts it is not deemed necessary to, show, as not concerning the invention. claimed. 

